Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull iov iter fix from Al Viro.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix a braino in ITER_PIPE iov_iter_revert()

lib/iov_iter.c

···
 		while (1) {
 			size_t n = off - pipe->bufs[idx].offset;
 			if (unroll < n) {
-				off -= (n - unroll);
+				off -= unroll;
 				break;
 			}
 			unroll -= n;